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552 hedge funds and large institutions have $9.18B invested in Rambus in 2025 Q4 according to their latest regulatory filings, with 102 funds opening new positions, 190 increasing their positions, 194 reducing their positions, and 53 closing their positions.

New
Increased
Maintained
Reduced
Closed

92% more first-time investments, than exits

New positions opened: 102 | Existing positions closed: 53

40% more call options, than puts

Call options by funds: $65.1M | Put options by funds: $46.4M

8% more funds holding

Funds holding: 512552 (+40)

0.94% more ownership

Funds ownership: 91.78%92.72% (+0.94%)

2% less repeat investments, than reductions

Existing positions increased: 190 | Existing positions reduced: 194

11% less capital invested

Capital invested by funds: $10.3B → $9.18B (-$1.11B)

50% less funds holding in top 10

Funds holding in top 10: 63 (-3)

Holders
552
Holders Change
+40
Holders Change %
+7.81%
% of All Funds
6.72%
Holding in Top 10
3
Holding in Top 10 Change
-3
Holding in Top 10 Change %
-50%
% of All Funds
0.04%
New
102
Increased
190
Reduced
194
Closed
53
Calls
$65.1M
Puts
$46.4M
Net Calls
+$18.7M
Net Calls Change
-$41.3M
Name Holding Trade Value Shares
Change
Change in
Stake
California State Teachers Retirement System (CalSTRS)
101
California State Teachers Retirement System (CalSTRS)
California
$9.28M -$9.25K -94 -0.1%
SC
102
SummitTX Capital
Texas
$8.95M +$2.95M +29,984 +44%
Deutsche Bank
103
Deutsche Bank
Germany
$8.93M -$2.83M -28,748 -23%
CM
104
Castleark Management
Illinois
$8.78M -$1.5M -15,260 -14%
RIM
105
Ranger Investment Management
Texas
$8.77M +$9.4M +95,490 New
AFWM
106
AMJ Financial Wealth Management
Virginia
$8.72M +$6.69M +67,973 +252%
Thrivent Financial for Lutherans
107
Thrivent Financial for Lutherans
Minnesota
$8.68M +$6.87M +69,776 +282%
Bessemer Group
108
Bessemer Group
New Jersey
$8.61M +$886 +9 +0%
Creative Planning
109
Creative Planning
Kansas
$8.39M +$464K +4,715 +5%
OCM
110
Osterweis Capital Management
California
$8.18M -$6.15M -62,495 -41%
HIM
111
Hillsdale Investment Management
Ontario, Canada
$8.18M -$2.33M -23,710 -21%
LPL Financial
112
LPL Financial
California
$7.77M -$1.58M -16,066 -16%
Los Angeles Capital Management
113
Los Angeles Capital Management
California
$7.62M -$717K -7,286 -9%
DB
114
Danske Bank
Denmark
$7.14M -$2.3M -23,330 -23%
New York State Teachers Retirement System (NYSTRS)
115
New York State Teachers Retirement System (NYSTRS)
New York
$7.07M +$400K +4,065 +6%
TI
116
Trexquant Investment
Connecticut
$6.89M +$7.37M +74,943 New
Envestnet Asset Management
117
Envestnet Asset Management
Illinois
$6.38M -$2.34M -23,737 -25%
FAM
118
Fred Alger Management
New York
$6.18M -$8.86K -90 -0.1%
Victory Capital Management
119
Victory Capital Management
Texas
$6.16M -$247K -2,512 -4%
VA
120
Vident Advisory
Georgia
$6.07M +$884K +8,984 +16%
SG Americas Securities
121
SG Americas Securities
New York
$5.85M +$1.95M +19,772 +45%
Canada Life
122
Canada Life
Manitoba, Canada
$5.69M -$1.99M -20,272 -25%
EI
123
EAM Investors
California
$5.6M -$2.78M -28,244 -32%
GC
124
Globeflex Capital
California
$5.43M -$464K -4,715 -7%
American Century Companies
125
American Century Companies
Missouri
$5.36M +$2.29M +23,311 +67%